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| author | Li Jinyue <lijinyue@huawei.com> | 2017-12-14 17:04:54 +0800 |
|---|---|---|
| committer | Erick Reyes <erickreyes@google.com> | 2018-03-27 11:27:04 -0700 |
| commit | 1a83af8aa99799d4fd163a9fb6469015c89fdc99 (patch) | |
| tree | 4553d6c40b016d62379c1e67b8a35a9185b62431 /tools/perf/scripts/python/syscall-counts.py | |
| parent | 0efe4409860f3de2e41432c70fae369bb07a35ac (diff) | |
BACKPORT: futex: Prevent overflow by strengthen input validation
UBSAN reports signed integer overflow in kernel/futex.c:
UBSAN: Undefined behaviour in kernel/futex.c:2041:18
signed integer overflow:
0 - -2147483648 cannot be represented in type 'int'
Add a sanity check to catch negative values of nr_wake and nr_requeue.
Signed-off-by: Li Jinyue <lijinyue@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Erick Reyes <erickreyes@google.com>
Cc: peterz@infradead.org
Cc: dvhart@infradead.org
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/1513242294-31786-1-git-send-email-lijinyue@huawei.com
Cherry-picked from fbe0e839d1e22d88810f3ee3e2f1479be4c0aa4a
Change-Id: I954cc2848678318b60ec3f103d0c15f87b4605a4
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions